diff --git a/bach.sed b/bach.sed
index 92ebc98..3e002be 100755
--- a/bach.sed
+++ b/bach.sed
@@ -1,4 +1,4 @@
-#!/bin/sed -Ef
+#!/usr/bin/env -S sed -Ef
 # echo | ./bach.sed | aplay -r44100
 
 s/.*/ZBpqwACoqvACZBpswBEpquwAoqvADoZmZgmquykoqvxknsvzjmqwAjlqtxikpvyijmptgjmptdgkotfikpsfknpsbjmpscfkprejopqdjkoqdikpsdgkptdgkotdhmpudikpvdgkptdgkqtafkns/